General

  • Target

    7835f887693ad6690270bcb44b63da01130c107aaf525e721912bca5d48df294

  • Size

    653KB

  • Sample

    230307-y7latabc2s

  • MD5

    ff1a1b7608d668fed081704b849e590d

  • SHA1

    84e7b23fe4089fa5e1f97ab6f88df49530f13737

  • SHA256

    2da534bf8dbf75eb4274bdc2bd00a884dd49c8801b13bd256356de5aa54f3e0a

  • SHA512

    73725918350fc2385a7463964e08ef369aaad8dbae3560a66fed29c4f7b2caaff02637a86cc2c9333e3421ed9b6a54181351a93f96850686382cc94de5c3c2f9

  • SSDEEP

    12288:Ft9kePBy4KQ1GsgmFIJpXwaqOdKL53DKBMYQLlHRS1mZi/DZD8dr:iFQRZiJpXLKLtKmYmRqbZGr

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .cosw

  • offline_id

    fTU4hYOJ0niv7WAg9utRTzxXv2TcoEvGPJhzIot1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-hhA4nKfJBj Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0658JOsie

rsa_pubkey.plain

Targets

    • Target

      7835f887693ad6690270bcb44b63da01130c107aaf525e721912bca5d48df294

    • Size

      765KB

    • MD5

      839d93c22afa775900d65606fea333cf

    • SHA1

      08a0dfaffb487977f2ad7538a3458b6532b1cf10

    • SHA256

      7835f887693ad6690270bcb44b63da01130c107aaf525e721912bca5d48df294

    • SHA512

      2f27d10f36dfd82602bdfaaa69a7c0bd552530135727375760cda59896767e07b3635af72a4978ccd5b10d1371f698efe3843911ed084d769317a76b27442c30

    • SSDEEP

      12288:YUCEWhShNkePBi4cQ1GEgwFIfpXwaqOdYL53DaBMYQLlTRSnaZi/HZP8dO3Zu:AhSoBQ7RufpXhYLtamYMRqPZKyo

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks